/* 中间 */
.content { 
    /*min-height: 621px;*/
}

/* 右边内容 */
.center_content { 
    float: left;
    width: 1000px;
    /*min-height: 621px;*/
    margin-left: 30px;
    margin-top: -20px;
}

#nav {
    width: 1000px;
    height: auto;
    text-align: center;
}

#nav a {
	display: block;
    width: 500px;
    height: 34px;
    line-height: 34px;
    background-color: #ddd;
    float: left;
    font-weight: 700;
    color: #fff;
}

#nav .active a {
    background-color: #04a2ca;
}

.content_a {
    margin-top: 15px;
}

.content_a a {
    color: #8e8e87;
    font-size: 15px;
    font-weight: 600;
}

.content_a .btn_a {
    text-decoration: underline; 
}


.content_form form {
    margin-left: 25px;
    margin-top: 15px;
}

#name {
    width: 435px;
    height: 35px;
}

#time {
    width: 313px;
    height: 40px;
}

#text {
    margin-top: 5px;
    width: 986px;
    height: 335px;
    margin-bottom: 10px;
}

.content_form .btn {
    width: 107px;
    height: 38px;
    text-align: center;
    line-height: 38px;
    border: 0;
    font-size: 20px;
    background-color: #3498db;
    color: #fff;
    margin-left: 440px;
}